Add Bark notification channel for alerts

[lovealan]

What this PR does / why we need it?

Add Bark as a new alert notification channel.

Summary of your change

Add Bark notification channel.

Please indicate you've done the following:

• Made sure tests are passing and test coverage is added if needed.
• Made sure commit message follow the rule of Conventional Commits specification.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed.

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[lan-yonghui]

@lovealan Please help complete the internationalization (i18n) content to ensure full coverage and consistency across all languages.

[lovealan]

@lan-yonghui 已修改

[lan-yonghui]

@lan-yonghui 已修改

Okay,Thanks for your contribution! I’ll review the changes.